/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.flowable.crystalball.simulator;

import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;

import org.flowable.common.engine.impl.runtime.ClockReader;
import org.springframework.beans.factory.FactoryBean;

/**
 * @author martin.grofcik
 */
public class SimpleEventCalendarFactory implements FactoryBean<EventCalendar> {

    protected final Collection<SimulationEvent> simulationEvents;
    protected Comparator<SimulationEvent> eventComparator;
    protected final ClockReader clockReader;

    public SimpleEventCalendarFactory(ClockReader clockReader, Comparator<SimulationEvent> eventComparator, Collection<SimulationEvent> simulationEvents) {
        this.clockReader = clockReader;
        this.eventComparator = eventComparator;
        this.simulationEvents = simulationEvents;
    }

    public SimpleEventCalendarFactory(ClockReader clockReader, Comparator<SimulationEvent> eventComparator) {
        this.eventComparator = eventComparator;
        this.clockReader = clockReader;
        this.simulationEvents = Collections.emptyList();
    }

    @Override
    public SimpleEventCalendar getObject() {
        SimpleEventCalendar simpleEventCalendar = new SimpleEventCalendar(clockReader, eventComparator);
        simpleEventCalendar.addEvents(simulationEvents);
        return simpleEventCalendar;
    }

    @Override
    public Class<?> getObjectType() {
        return SimpleEventCalendar.class;
    }

    @Override
    public boolean isSingleton() {
        return false;
    }

}
